Question 51
How long does it take a 750 W heater operating at full rating to raise the temperature of 1 kg of water from 40oC to 70oC? (Take the specific heat capacity of water as 4200 J kg-1 K-1 and neglect heat losses).
Objective
Question details
- Exam body
- WAEC
- Subject
- Physics
- Year
- 1993
- Question no.
- #51
- Type
- Objective
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